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Design and construction of a telecommunications tower foundation using micropiles

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Articulo Final_Juan Mejias (1.205Mb)
Poster - Juan Mejías (1.727Mb)
Date
2018
Author
Mejías López, Juan F.
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Abstract
The design and construction of a selfsupported tower (three-legged tower) foundation was performed. An existing tower affected structurally by hurricane Maria is located in a very remote location in Yabucoa, making the replacement of the tower a very challenging project. The replacement of this tower is vital for the reconstruction and re-establishment of the cellular communications in Puerto Rico. The use of micropiles was chosen because a relatively small equipment is needed to construct the micropiles. Also, the amount of material needed to complete the micropiles is small as well. This makes it a very suitable alternative for this very difficult vehicular access project. Cost effectiveness and constructability was also a very important aspect when choosing the micropiles. The geotechnical investigation, structural design and construction of the foundation supported with micropiles was successfully completed. A load test was also performed without geotechnical or structural failure. It was established that the Granodiorite Rock, geology of site and a vast area in the eastern part of Puerto Rico, is capable of developing relatively high grout-to-ground bond capacities. Important Terms  Axial Capacity, Compression Load, Geotechnical Capacity, Granodiorite Rock, Grout to Ground Bond Value, Micropiles, Pile Cap, Shear Load, Structural Capacity, Tension Load, Tension Load Test.
URI
http://hdl.handle.net/20.500.12475/208
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  • Civil Engineering

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